/Engine/Plugins/Experimental/GeometryScripting/Source/GeometryScriptingCore/Public/GeometryScript/ListUtilityFunctions.h
Updates the value of the FVector stored in the Vector List at the specified location. If theIndexis invalid, the operation will fail and bValidIndex will be set to false.
[UFUNCTION](Programming/UnrealArchitecture/Reference/Functions)(BlueprintCallable, Category="GeometryScript|ListUtils", Meta=(ScriptMethod)) static void SetVectorListItem ( [FGeometryScriptVectorList](API\Plugins\GeometryScriptingCore\GeometryScript\FGeometryScriptVectorList) & VectorList, int Index, FVector NewValue, bool & bIsValidIndex )